学习实践七年级英语下册Unit6 Electricity期末知识点汇总.docx
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学习实践七年级英语下册Unit6Electricity期末知识点汇总
七年级英语下册Unit6Electricity期末知识点汇总
七年级英语下册Unit6Electricity期末知识点汇总
1.
moment可数名词,意为”瞬间;片刻”如：
I’dliketotalktoyouforamoment.
与moment相关的短语：
amomentago
刚刚;刚才
如：
Hewashereamomentago.
atthemoment
现在;此刻
如：
Heisathomeatthemoment.
waitamoment
等一会儿
如：
waitamoment,please.
later副词,意为”后来;以后”
2.
atthemoment
此时此刻；forthemoment暂时；inamoment
过一会儿；atanymoment任何时刻
3.
apacketof
一袋
不可数名词没有复数形式，在表示数量时，常用“a+单位量词+of+不可数名词”结构。
如：
apieceofmeat;
apieceofpaper;
aglassofapplejuice;
abagofmilk
数词+单位量词+of+不可数名词\可数名词复数
如：
twoglassesofwater;
threecupsoftea;
twopacketsofsweets;
threebagsofpencils
4.
inaway在某种程度上
ontheway在路上；
intheway挡道；
inthisway这边走；
bytheway顺便问下
5.
connect连接…
常用结构:
beconnectedtosth.连接到……
connectsth.to/with…把…和…连接起来.
如：
TurnonyourcomputerandconnectittotheInternet.
TherailwaylineconnectswuhantoShanghai.
6.
powerstation
发电站
7.
washingmachine洗衣机
8.
switchoff=turnoff
关掉
9.
tidyup
收拾整理=putaway
0.
aircondition
空调
1.
comeinto
进入……之内
2.
providesb.withsth.
供应给某人某物
如：
Thesunprovidesuswithlightandheat.
“为某人提供某物”还可以用providesth.forsb.
3.
“asmany+复数名词+as”
意为”和……一样多的…”
如：
Ihaveasmanybooksasyou.
我和你有一样多的书.
“asmuch+不可数名词+as”
意为”和…一样多的…”
如：
mybrotherdrinksasmuchmilkasIeveryday.
4.
sharesth.withsb.
与某人合用/分享某物
5.
“keep+sb./sth.+形容词”
意为“让某人/某物保持某种状态”。
keepdoingsth.
连续不断地做某事，一直做。
强调不断重复的动作。
如：
LiLeikeepsbuyingbooksaboutcars.李雷不断地买有关车的书。
keepsb./sth.doingsth.
让某人不断地做某事
keepsb.fromdoingsth.
阻止某人做某事
如：
wemustkeepthemfromgettingtoknowourplans.我们必须防止他们知道我们的计划。
6.
atleast
至少
7.
makesure
务必，确信
keygrammar
情态动词
一、情态动词的定义
情态动词是一类用于表示说话人的语气和情态的助动词。
常表示命令、请求、拒绝、义务、可能、需要等。
二、情态动词的特点
.情态动词无人称和数的变化,
2.情态动词后面跟的动词需用原形,否定式构成是在情态动词后面加"not"。
3.个别情态动词有过去式,过去式用来表达更客气,委婉的语气,时态性不强,可用于过去，现在。
三、情态动词的用法
.can/could；
can’t/couldn’t
）表示能力,意为“能、会”,例如：
如：
IcanspeakalittleEnglish.
--canyourideabike?
Ican’tswim.
--yes,Ican./No,Ican’t.
2）表示请求或允许，多用于口语中，意为“可以、能”等
如：
youcangohomenow.现在你可以回家了
--canIborrowyourbike?
youcan’tstopyourcarhere.
--yes,youcan./No,youcan’t.
3）用于否定句、疑问句中，表示猜测、怀疑或不肯定.
如：
Lucycan’tbeathomenow,shewenttotheparkjustnow.
wherecanitbe?
Ican’tfindmyfootball.
【注意：
】
）
could是can的过去式,有两种用法,一种表示过去式；一种用来表达更加客气,委婉的语气,时态性不强,可用于过去，现在。
2）beableto意为“有能力，能够做...”,相当于can/could,但它有人称，数和时态的变化。
2.may;
maynot
）表示“请求，许可”，此时与can同义，可以互换使用
如：
mayIborrowyourbike?
canIborrowyourbike?
yes,youmay./No,youmaynot.
yes,youcan./No,youcan’t.
2）may/might表示不太肯定的猜测，意为“有可能”
如：
Lucymaycometoschoollatetoday.
Itmightraintoday.
【注意】：
might是may的过去式,有两种用法,一种表示过去式，一种表示更加委婉,客气的语气或对可能性的怀疑。
3.must;
mustn’t
）must，mustn’t
如：
youmustgotobedbefore22:
00pm.
youmustn’tplaywithfire.It’sdangerous!
--mustIwritedownthesentences？
--No，youneedn’t.
注意：
在回答must的疑问句中，否定回答用needn’t或don’thaveto表示“不必”，不用mustn’t
2）must还可以表示非常肯定的猜测，意为“一定”
如：
ThegirlinaredskirtmustbeLucy.
3）must/haveto的区别：
①.must表示必须，强调主观上的愿望；haveto表示“不得不”，强调客观需要
如：
youmustgobebedbefore22:
00pm.
mybikeisbroken,soIhavetogotoschoolonfoot.
②.haveto有人称、数、时态的变化；must则没有。
如：
Ihavetocleantheclassroomtoday.
Shehastofinishherhomeworkfirst.
Itwaslate,hehadtogotoschoolwithoutbreakfast.
Practice
一、选择填空：
1.mummakesmeeatanappleeveryday______thedoctoraway.
A.
keeps
B.iskept
c.tokeep
D.kept
2.I’mgettingfatterandfatternow.whatshouldIdo,doctor?
--you’dbettereat______foodandtake______exercise.
A.less;less
B.more;more
c.more;less
D.less;more
3.---whatcanIdoforyou?
---I’dliketwo_______.
A.
packetoftea
B.packetsofapple
c.packetsoftea
D.packetofapples
4.watercomestoourflats__________pipesunderthestreets.
A.across
B.along
c.through
D.over
5.Andywanglooks_________today.Heislaughingalltheway.
A.happy
B.happily
c.sad
D.sadly
6.Thecomputerisconnected_______amachine.
A.
at
B.to
c.on
D.in
7.ourheadteacheriskindtousandsheislikeourmother,_____.
A.
ontheway
B.bytheway
c.inaway
D.intheway
8.________youshowmethewaytothenearestundergroundstation?
A.may
B.must
c.can
D
should
9.Electricity__________ourlifeeasier,wemustsaveit.
A.make
B.makes
c.ismaking
D.made
10.jasonputsomericeinthepotand__________thericecooker.
A.opened
B.switchedon
c.closed
D.turnedoff
11.Iwashedalotofclothes.whocan_______?
A.
tidyupthem
B.tidythemup
c.tidyitup
D.tidyupit
12.Iaskedhimtwice.Buthedidn’t______myquestions.
A.
answers
B.answerto
c.reply
D.replyto
13.Thereare_________syllablesintheword“chemical”.
A.two
B.three
c.four
D.eight
14.—john:
mayIhaveapacketofsweets?
—Shopassistant:
________________
A.No,itisnotyours
B.ok,hereyouare
c.That’sagoodidea
D.whynot?
15.EarthHourstartedinXXin________.
A.theUSA
B.china
c.theUk
D.Australia
二、用同义词（组）替代句中的划线部分。
．“Idon’tthinkitisagoodwaytoworkouttheproblem.”repliedmrwhite.
A.said
B.answered
c.asked
D.thought
2.Don’tlooksofoolish.Itisaveryeasyquestion.
A.silly
B.happy
c.clever
3.----canIaskyouaquestion?
----waitforamoment,I’mcoming.
A.alongtime
B.ashorttime
c.atonce
4.Theboyislikehisfather.
A.likes
B.soundslike
c.lookslike
5.youneedn’tfinishtheworktoday.
A.don’thaveto
B.can’t
c.mustn’t
三、用单词的适当形式填空：
yaomingisverytall.Heisat______twometrestall.
2withthis_______blanket,thegrandpawon'tfeelcoldinwinter.
3It’s_____________ofyoutobuysuchadress.Itlookssougly
4Theremotecontroldoesn’tworknow.Ithinkweneedtochangethetwo_________init
5yourroomisdirtyand_____________.Ithinkyouknowwhatyouneedtodonow
6.Amoment_____,Daisycameback.
7.Benny______“canyougetmeabagofsweets?
”
8.canTom_____English?
9.Electricityisveryhelpful,butwemustrememberthe_____rules.
0.wemustn’ttouchtheTVsetwithourwet______becauseitisdangerous.
四、语法，情态动词专练
.----mayIborrowyourbooks?
----yes,you______
.
A.may
B.can
c.must
D.need
2.
---canhespeakEnglish?
----________.
A.yes,hedoes
B.yes,hedid
c.yes,hecan
D.yes,hemust
3.
----_______Iswimhere?
----I’msorry.children_____swimalonehere.
A.must;can’t
B.may;must
c.can;mustn’t
D.can’t;can
4.withthehelpofthenewtechnology,you_____e-mailyourfriendsbymobilephone.
A.can
B.must
c.need
D.should
5.----canIgofishingwithyou,Dad?
-----No,you_____.you______stayathomeanddoyourhomework.
A.won’t;may
B.can’t;must
c.shouldn’t;ought
D.needn’t;should
6.Thomas,pleasebequiet.Theothers_____hearverywell.
A.can’t
B.mustn’t
c.shouldn’t
D.needn’t
7.It’sverywarmtoday.you____wearthecoat.
A.must
B.don’thaveto
c.haveto
D.mustn’t
8.Lookatthatmanoverthere.
hebeourteachermr.Luo?
--He
behim.HehasgonetoBeijing.
A.may;must
B.can;may
c.can;can’t
D.may;can’t
9.you_____talkloudlyinthelibrary.
A.don’t
B.mustn’t
c.needn’t
D.don’thaveto
0._____climbthattalltree?
A.Doyouneed
B.Areyouneed
c.Need
you
D.Needyouto
1.Somewarm-heartedanimals___hibernate
A.needn’t
B.doesnotneedto
c.needn’tto
D.don’tneed
2.____I
goandapologizetomyteacherformymistake?
A.Should
B.Need
c.can
D.may
3.They_____dowellintheexam.
A.canbeableto
B.beableto
c.areableto
D.amableto
4.mustIretrunthemagazinetoyourightnow,Sandy?
No,you______.you_____keepituntilnextwednesday.
A.mustn’t;may
B.needn’t;must
c.needn’t;can
D.can’t;may
5.
Ichangethebulbnow?
--No,youmaynot.
you
switchofftheelectricity.
A.can;need
B.may;must
c.must;must
D.can;must
6.john____cometoseeustonight,butheisn’tverysureyet.
A.may
B.can
c.hasto
D.must
7.----IsTomathomenow?
----He
beathomenow.BecauseI
hisroomjustnow
andheanswered.
A.must;called
B.can’t;phone
c.may;called
D.must;phoned
8.ShallItellTomsomethingaboutit?
--No,you
.
A.mustn’t
B.needn’t
c.can’t
D.won’t
9.mymotherisill.SoI
tolookaftermylittlebrother.
A.must
B.may
c.haveto
D.should
20.you____goandseeadoctoratoncebecauseyou’vegotafever.
A.can
B.must
c.dare
D.would
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